// Copyright (C) 2018-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
//

#pragma once

#include <memory>
#include <string>
#include <vector>

#include <ie_api.h>

#include "ngraph/op/op.hpp"

namespace ngraph {
namespace op {

class LSTMCellIE : public Op {
public:
    OPENVINO_OP("LSTMCellIE", "legacy");
    BWDCMP_RTTI_DECLARATION;

    LSTMCellIE(const Output<Node> &X,
                const Output<Node> &H_t,
                const Output<Node> &C_t,
                const Output<Node> &WR,
                const Output<Node> &B,
                size_t hidden_size,
                const std::vector<std::string>& activations,
                const std::vector<float>& activations_alpha,
                const std::vector<float>& activations_beta,
                float clip);

    LSTMCellIE() = delete;

    std::shared_ptr<Node> clone_with_new_inputs(const OutputVector& new_args) const override;
    void validate_and_infer_types() override;

    std::size_t get_hidden_size() { return m_hidden_size; }
    const std::vector<std::string>& get_activations() { return m_activations; }
    const std::vector<float>& get_activations_alpha() { return m_activations_alpha; }
    const std::vector<float>& get_activations_beta() { return m_activations_beta; }
    float get_clip() {return m_clip;}
    bool visit_attributes(AttributeVisitor& visitor) override;

protected:
    int64_t m_hidden_size{};

    std::vector<std::string> m_activations;
    std::vector<float> m_activations_alpha;
    std::vector<float>  m_activations_beta;
    float m_clip;
};

}  // namespace op
}  // namespace ngraph
